package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.*;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.hssf.record.DVALRecord;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;

    @Reference
    private SetmealService setmealService;

    @Reference
    protected ReportService reportService;

    //会员数量统计折线图
    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        //获取当前日历日期
        Calendar calendar = Calendar.getInstance();

        //获取当前日期之前的第13个月日期
        calendar.add(Calendar.MONTH, -13);

        List<String> monthList = new ArrayList<>();

        for (int i = 0; i < 12; i++) {
            //遍历获得13月之前的12月日期时间,并放到集合中
            calendar.add(Calendar.MONTH, 1);

            monthList.add(new SimpleDateFormat("yyyy-MM").format(calendar.getTime()));

        }

        HashMap<String, Object> map = new HashMap<>();
        //添加日期数据到map集合中
        map.put("months", monthList);
        List<Integer> memberCount = memberService.findMemberCountBMonth(monthList);

        map.put("memberCount", memberCount);


        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }

    //获取所有预约套餐的饼状图
    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        try {
            //查询所有套餐的名称及预约套餐的名称和总数,封装map集合中
            Map<String, Object> map = new HashMap<>();

            //查询所有套餐的名称和预约套餐的总数,封装List<map>集合中
            List<Map<String, Object>> setmealNameAndCountList = setmealService.findSetmealNameAndCount();

            map.put("setmealCount", setmealNameAndCountList);

            //获得所有套餐的名称,封装到List集合中
            List<String> setmealNamesList = new ArrayList<>();
            for (Map<String, Object> setmealNameAndCountMap : setmealNameAndCountList) {
                String name = (String) setmealNameAndCountMap.get("name");

                setmealNamesList.add(name);
            }

            map.put("setmealNames", setmealNamesList);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);

        }

    }

    //获取运营统计数据,封装到map集合
    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> map = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);

        }
    }

    //导出excel文件
    @RequestMapping("/exportBusinessReport")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {

        Map<String, Object> result = reportService.getBusinessReportData();

        //取出返回结果数据,准备将数据写到Excel文件中
        String reportDate = (String) result.get("reportDate");
        Integer todayNewMember = (Integer) result.get("todayNewMember");
        Integer totalMember = (Integer) result.get("totalMember");
        Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
        Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
        Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
        Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
        Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
        Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
        Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
        Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
        List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

        //获取Excel模板文件的绝对路径
        String templateRealPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";

        try {
            //读取模板文件创建的Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(templateRealPath)));
            //获取表格文件中第一个工作表对象
            XSSFSheet sheet = workbook.getSheetAt(0);
            //excel表格中的行列都是从0开始 表格中第3行第6列的单元格,
            // 实际是索引2,索引5 用工作表对象获取时用索引
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);


            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {
                String name = (String) map.get("name");
                long setmeal_count = (long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");

                row = sheet.getRow(rowNum++);

                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");

            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();
            return null;
        } catch (IOException e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL, null);
        }
    }

    //导出pdf文件
    @RequestMapping("/exportBusinessReport4PDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();

            //取出热门套餐数据
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获取模板文件的绝对路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business3.jasper";

            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            /*
             * 填充数据-->使用JavaBean数据源方式填充
             * jasperPath   编译后的模板路径
             * result    普通参数无需遍历,直接赋值
             * 需要遍历的用JRBeanCollectionDataSource类封装一下
             * */
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));

            //两头一流
            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");


            //将添加数据的模板文件输出流写到响应流中
            JasperExportManager.exportReportToPdfStream(jasperPrint, out);

            return null;
        } catch (JRException e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        } catch (IOException e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }


    }
}
